AFE76xx Quad/dual-channel, RF sampling analog front-end with 14-bit 9GSPS DACs and 14-bit 3GSPS ADCs

1 Device Overview

1.1 Features

• 14-Bit resolution
• Sample rate:
  • DAC: 9GSPS
  • ADC: 3GSPS
• RF Frequency range: up to 5.2 GHz
• Maximum RF signal bandwidth
  • Quad-channel mode (4T4R): 800 MHz (single-band); 300 MHz (dual-band)
  • Dual-channel mode (2T2R): 1200 MHz (TX)/1000 MHz (RX) (single-band); 800MHz(dual-band)
• On-chip dual selectable DSAs per RX channel
• Integrated TX DSA functionality
• Digital:
  • Dual band digital up-converters (DUCs)
  • Dual Band digital down-converters (DDCs)
  • 32-Bit NCOs for DUCs/DDCs
  • Interpolation ratio: 6x, 8x, 9x, 12x, 16x, 18x, 24x, 36x
  • Decimation ratio: /2, /3, /4, /6, /8, /9, /12, /16, /18, /24, /32
  • RX/FB Dynamic switching for TDD
• Interface:
  • 8 SerDes Transceivers up to 15Gbps
  • 16-Bit and 12-bit JESD204B transport layer formatting with 8b/10b encoding
  • Subclass 1 multi-device synchronization
• Clock:
  • Internal PLL/VCO to generate DAC and ADC clocks
• Package: 17mm x 17mm FC BGA, 0.8mm pitch
• Power supplies: 1.85 V, 1.15 V, 1.0 V, –1.8 V

1.2 Applications

• Cellular base stations
• Wideband communications
• Microwave backhaul
• Distributed antenna systems (DAS)